ecommerce Product Feed Displays the most expensive variations in Pinterest and Outfy

Hi,

I had a shop on Pinterest with an xml  feed directly from squarespace somehow the products displayed on Pinterest only show the most expensive variation first. I have exactly the same issue when I used Oufty to create pins directly from ,my products in squarespace. I have stopped having a shop on Pinterest for now. Does any one have a solution for this? Is there one?

Thank you